This is a much modified version of the public domain spread sheet sc,
posted several years ago by Mark Weiser as vc, originally by James Gosling.

CHANGES lists the changes since 6.1 to 6.21.
	Sc6.16 was released to comp.sources.misc and four sets of patches
	bring Sc6.16->6.17->6.18->6.19->6.21.

This is version 3.1.1c.
